More and more people are taking their iPads to bed with them to surf the web, check facebook or send e-mails before switching off the light. But researchers are warning that the blue light their screens give off can stop users getting a good night’s sleep. That is because this type of light is similar to daylight, convincing the brain that it is still daytime. Blue light prevents the production of a brain chemical called melatonin, which helps us fall asleep. By contrast, light which is more orange or red does not prevent melatonin production, perhaps because our brains recognize it as a cue that the day ends.
Scientists have known for years that staring at screens late in the evening can affect sleep ---- they are television screens, computer screens or mobile phone screens. However, because mobiles and iPads are by nature portable ---- not to say addictive ---- more people are taking them into the bedroom. Users also tend to hold them much closer to their eyes than a computer or television screen.
Researchers are warning that looking at iPad displays for more than two hours leads to lower natural melatonin levels as the devices give off blue light. They say, “Turning off the devices at night is the final solution. But if you have to use these devices at night, dim the display to cut down irritation of the eyes and limit the time you spend on them before bed.”
They wrote in the journal Applied Ergonomics(应用人类工程学) that iPad makers should adjust the spectral power distribution(光谱功率分布) of the devices so that they affect the sleep patterns of users less.
It is not just a good night’s sleep that could be harmed by too much late night screen time. Researchers know that long-term harm to sleep patterns can lead to an increased risk of obesity and even cancers.Blue light prevents iPad users from sleeping well because ____.
| A．it is the same as daylight which keeps people awake |
| B．it makes the brain more active |
| C．it is brighter than light that is more orange or red |
| D．it can help decrease the production of melatonin |
The underlined phrase “dim the display” means ____.
| A．keep away from the display |
| B．make the display less bright |
| C．clean the display carefully |
| D．turn off the display |
In the last paragraph, the author intends to ____.
| A．warn of the seriousness of long-term poor sleep |
| B．call on researchers to study sleep patterns |
| C．show the danger of obesity and cancers |
| D．show how sleep is harmed by using iPads too much |
What’s the main idea of the passage?
| A．Scientists are warning that blue light is bad for our health. |
| B．People should limit the use of electronic devices |
| C．Using iPads before bed can cause a poor night’s sleep. |
| D．Looking at screens of iPads increase chances of sleeplessness. |
February has long been a month of romance. With the sweet smell of roses in the air, romantic films hit cinemas and love stories fill newspapers and magazines.
On the 14th day, it is a custom for a boy to take his girlfriend out to dinner, buy her flowers and chocolates, write poems, sing to her or even spell out her name with rose petals! This is what you see on Valentine’s Day, a day named after Valentine who was a priest in the third century Rome. When the emperor (皇帝) decided that single men could become better soldiers than those with wives, he didn’t allow marriage. But Valentine continued to perform marriage ceremonies for young lovers in secret. When his actions were discovered, the emperor sentenced him to death. While in prison, it is said that Valentine fell in love with the daughter of his prison guard. Before his death, he wrote her a letter, which he signed “From your Valentine”, an expression that is still in use today. Valentine died for what he believed in and so he was made a Saint (圣徒), as well as becoming one of history’s most romantic characters.
Nowadays, Valentine’s Day is also popular among Chinese young people. Some students are planning to make Valentine’s cards for parents, teachers and friends. Others want to hold parties at which they will exchange small gifts and eat heart-shaped cakes. The idea is to have fun and encourage people to share in the spirit of St. Valentine. Why did the emperor in Rome not allow marriage in his country?
| A．Because there were few women in his country at that time. |
| B．Because he thought men without wives could be better soldiers. |
| C．Because there wasn’t enough food for so many people. |
| D．Because he wanted to control the birth rate. |
Valentine was put into prison because ______.
| A．he killed one of the soldiers |
| B．he stole a lot of food |
| C．he didn’t obey the emperor’s order |
| D．he didn’t want to be a soldier |
The last paragraph mainly tells us ______.
| A．students in China send cards to their teachers |
| B．it is a good idea to celebrate Valentine’s Day in China |
| C．it is interesting to celebrate Valentine’s Day in China |
| D．Valentine’s Day is also popular in China now |
The best title for this passage should be ______.
| A．Valentine’s Day | B．A Brave Priest |
| C．Valentine’s Day in China | D．A Romantic Man |
阅读下列短文，从每小题所给的四个选项(A. B. C和D) 中，选出最佳选项。
| Is veg food healthier than non-veg food? I feel this is a very common topic that people speak on．Please give me your opinions on this topic． |
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| Rao 12-18-08 |
So far as veg food is concerned, it is also proved to be a healthy and nutritious diet, but has very few items which can provide us with proteins, but if you see non-veg food like eggs, chicken, and many more, such foods have a large content of proteins in them. |
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| Sai 12-19-08 |
Man basically is herbivorous（食草的）. If we look at the animal kingdom We can see that all the herbivorous animals have the similar dental（牙齿的） structure, which clearly shows that the human being also ought to be vegetarian by birth. It is only the living conditions that make man carnivorous（食肉的）. The vegetarian foods are easily digestible. |
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| Santos 12-20-08 |
Non-veg food items are better than veg items. A healthy person requires complete diet and veg+ meat makes the diet complete. The only caution that needs to be taken is not to have non-veg items on a daily basis. Once in a week or couple of weeks will be best. |
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| Krishna 01-03-09 |
When we eat non-veg, we are all veg by nature. The chicken that we eat feeds on grains, the mutton that we eat feeds on grass, and the fish that we eat feeds on simple plants. So non-veg food by logic（逻辑）is better and suited for hauman beings. |
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| Khan 01-05-09 |
Non-veg food is equally important in our diet as it helps in many ways, especially fish and other seafood as fish contains omega 3 which makes our immune system（免疫系统）stronger. Do you know that most of the veg food put together does not contain as much omega 3 as fish alone contains! |
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| Khan 01-05-09 |
Non-veg food is equally important in our diet as it helps in many ways, especially fish and other seafood as fish contains omega 3 which makes our immune system（免疫系统）stronger. Do you know that most of the veg food put together does not contain as much omega 3 as fish alone contains! |
|
According to Rao, what is the problem with veg food?
| A．It damages our immune system. | B．It has few nutrients. |
| C．It contains too much omega | D．It is lacking in protein. |
In the opinion of Sai, humans are born vegetarian because humans______.
| A．have the same teeth structure as plant-eating animals |
| B．believe that veg foods are good for their teeth |
| C．belong to the plant-eating animal family |
| D．can adapt to the living conditions like plant-eating animals |
What advice is given by Santos?
| A．To have a saily veg+ meat diet. |
| B． Not to eat non-veg food every day. |
| C．To eat digestible food every day. |
| D．Not to eat food without protein. |
Tell a story and tell it well, and you may open wide the eyes of a child, open up lines of communication in a business, or even open people’s mind to another culture or race.
People in many places are digging up the old folk stories and the messages in them. For example, most American storytellers get their tales from a wide variety of sources, cultures, and times. They regard storytelling not only as a useful tool in child education, but also as a meaningful activity that helps adults understand themselves as well as those whose culture may be very different from their own.
“Most local stories are based on a larger theme,” American storyteller Opalanga Pugh says, “Cinderella(灰姑娘), or the central idea of a good child protected by her goodness, appears in various forms in almost every culture of the world.”
Working with students in schools, Pugh helps them understand their own cultures and the general messages of the stories. She works with prisoners too, helping them know who they are by telling stories that her listeners can write, direct, and act in their own lives. If they don’t like the story they are living, they can rewrite the story. Pugh also works to help open up lines of communication between managers and workers. “For every advance in business,” she says, “there is a greater need for communication.” Storytelling can have a great effect on either side of the manager-worker relationship, she says.
Pugh spent several years in Nigeria, where she learned how closely storytelling was linked to the everyday life of the people there. The benefits of storytelling are found everywhere, she says.
“I learned how people used stories to spread their culture,” she says. “What I do is to focus on the value of stories that people can translate into their own daily world of affairs. We are all storytellers. We all have a story to tell. We tell everybody’s story.”What do we learn about American story tellers from Paragraph 2 ?
| A．They share the same way of storytelling. |
| B．They prefer to tell stories from other cultures. |
| C．They learn their stories from the American natives. |
| D．They find storytelling useful for both children and adults. |
The underlined sentence (Paragraph 4) suggests that prisoners can _____.
| A．direct films |
| B．settle down in another place |
| C．start a new life |
| D．become good actors |
Pugh has practised storytelling with _____ groups of people.
| A．2 | B．3 | C．4 | D．5 |
What is the main idea of the text?
| A．Storytelling can influence the way people think. |
| B．Storytelling is vital to the growth of businesses. |
| C．Storytelling is the best way to educate children in school. |
| D．Storytelling helps people understand themselves and others. |
In most languages, a greeting is usually followed by “small talk”. Small talk means the little things we talk about at start of a conversation. In English-speaking countries people often make small talk about the weather: “Nice day, isn’t it?” But there is something special about small talk. It must be about something which both people have the same opinion about. The purpose of small talk is to let both people agree on something. This makes meeting people easier and more comfortable. People usually agree about the weather, so it is a safer topic for small talk. But people often disagree about religion or politics so these are not suitable topics for small talk in English. The topics for small talk also depend on where the conversation is taking place. At football matches, people make small talk about the game they are watching: “Great game, isn’t it?” At bus stops, people may comment about the transport system: “The bus service is terrible, isn’t it?”
Greetings and small talk are important parts of conversation in any language. The way people greet each other and the things they talk about, however, may be different from one language to another. This shows that there is much more to learn when we learn a language than just the vocabulary and the grammar of the language. We also have to learn the social behavior of the people who speak it.Small talk __________ .
| A．is a kind of conversation with short words |
| B．is a greeting when people meet each other |
| C．is to let people disagree about something |
| D．is something we talk about to start with a conversation |
Why do people need small talk?
| A．To choose a topic for conversation. |
| B．To agree about the weather. |
| C．To let meeting people become easier and more comfortable. |
| D．To learn a language. |
The passage suggests that when we learn a language ,__________．
| A．we should grasp the importance of the language |
| B．we should know the culture of the language |
| C．we should only master the grammar and vocabulary |
| D．we should learn about the transport system of the country |
Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives. Giving someone all your love is never an assurance that they will love you back. Do not expect love in return; but if it does not, be content it grows in yours.
It takes an hour to like someone, and a day to love someone, but it takes a lifetime to forget someone. Do not rely on one's appearance, it can deceive. Do not rely on wealth, even that fades away. Rely on someone who makes you smile, because it takes only a smile to make a dark day seem bright.
There are moments in life when you miss someone so much that you just want to pick them from your dreams and hug them.
Dream what you want to dream; go where you want to go; be what you want to be, because you have only one life and one chance to do all the things you want to do.
May you have enough happiness to make you sweet, enough trials to make you strong, enough sorrow to keep you human, enough hope to make you happy.
Always put yourself in others' shoes. If you feel that it hurts you, it probably hurts the other person, too.
The happiest of people do not necessarily gave the best of everything; they just make the most of everything that comes along their way. Happiness waits for those who cry, those who have been hurt, those who have searched, and those who have tired, for only they can appreciate the importance of people who have touched their lives.
The brightest future will always be based on a forgotten past. You cannot go on well in life until you let your past failures and heartaches go off.
When you were born, you were crying and everyone around you was smiling. Live your life so that when you die, you are the one who is smiling and everyone around you is crying.The writer thinks the trouble with some people is that they __________.
| A．always take a long view about problems |
| B．look at problems all-sidedly |
| C．can be good at doing with problems |
| D．deal with problems one-sidedly |
Which of the following statements is true according to the passage?
| A．We often don't know what we have lost until it happens. |
| B．If it takes you an hour to love someone, you will easily forget her. |
| C．If you give someone your love, you are sure that she will give her love to you in return. |
| D．If someone accepts your love and he doesn’t give you his love in return, you should be angry with him. |
If you put yourself in another's position, ___________.
| A． you should depend on wealth |
| B．you shouldn't do those things that will hurt you and other people |
| C．you will do what you want to do however dangerous it is to people |
| D．you should depend on other people |
In the last paragraph of the passage, the writer is actually telling us that a man in the world should be one who __________.
| A．can accept the suggestions made by others |
| B．can live happily and forget the past |
| C．does good for the people and is respected by them |
| D．has made a lot of money for himself when he dies |
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